*{
    padding: 0;
    margin: 0;
    list-style: none;
    box-sizing: border-box;
}
.search{
    width: 100vw;
    height: 100vh;
}
.searchtop{
    width: 100vw;
    height: 10vh;
    background: red;
}
.searchbtn{
    width: 100vw;
    height: 90vh;
    background: skyblue;
    overflow-y: auto;
}